The opening weekend is in December.
Leinster will begin their Champions Cup campaign against Bath in December.
Their Pool A opener has been fixed for Saturday, December 11th at the Aviva Stadium.
Ulster are away to Clermont that evening.
The following day, Munster are in Coventry for a meeting with Wasps.
Also on the Sunday, Connacht open their campaign away to Stade Francais.

Stephen's Day Soccer Update
Stephen's Day Racing Schedule
Forward Cormac Izuchukwu Signs New Deal With Ulster
Alexander Isak To Be Out For A Couple Of Months After Suffering Leg Injury From Saturday's Game
Tuesday Morning Sports Update
Leo Cullen Issues Injury Update Ahead Of Saturday's Clash With Munster
Irish Athletes Celebrate Their Most Successful Year Ever
Monday Morning Sports Update